title: Normal pupil size and anisocoria in newborn infants.
abstract: The incidence of anisocoria in the newborn period is not well described. Additionally, the normal range of infant pupil size is not well defined. Eight-eight healthy newborns were evaluated. Pupil size and color were obtained from photographs. The mean (+/- SD) pupil size was 3.8 +/- 0.8 mm. There was no statistical difference between right and left eyes. A statistically significant difference in pupil size was found between blue and brown eyes. The incidence of anisocoria was found to be 21%. No difference was greater than 1.0 mm. The incidence of anisocoria was no different on the basis of eye color.
authors.affiliation: Department of Ophthalmology, Henry Ford Hospital, Detroit, Mich.
authors.forename: J D
authors.initials: JD
authors.lastname: Roarty
authors.forename: J L
authors.initials: JL
authors.lastname: Keltner
mesh_terms: D015875:Anisocoria / Q000453:epidemiology*; D002140:California; D005127:Eye Color; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D007498:Iris / Q000033:anatomy & histology*; D010781:Photography; D011680:Pupil; D012016:Reference Values